CVE-2025-62408 · cross-distro fix matrix

CVE-2025-62408: c-ares is an asynchronous resolver library. Versions 1.32.3 through 1.34.5 terminate a query after maximum attempts when using read_answer() and process_answer(), which can cause a Denial of Service. This issue is fixed in version 1.34.6.

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2025-62408 has a known fix. Run the listed command on that distro to remediate.

Debian trixie

Source: Debian Security Tracker

c-ares→ fixed in1.34.5-1+deb13u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y c-ares
```

Alpine v3.21

Source: Alpine secdb

c-ares→ fixed in1.34.6-r0
```
apk update && apk add --upgrade c-ares
```

Alpine edge

Source: Alpine secdb

c-ares→ fixed in1.34.6-r0
```
apk update && apk add --upgrade c-ares
```

Are YOU affected by CVE-2025-62408?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

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